A global OClO stratospheric layer discovered in GOMOS stellar occultation measurements

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Authors
Fussen, D.
Vanhellemont, F.
Dodion, J.
Bingen, C.
Mateshvili, N.
Daerden, F.
Fonteyn, D.
Errera, Q.
Chabrillat, S.
Kyrölä, E.
Tamminen, J.
Sofieva, V.
Hauchecome, A.
Dalaudier, F.
Bertaux, J.-L.
Renard, J.-B.
Fraisse, R.
D'Andon, O.F.
Barrot, G.
Guirlet, M.
Mangin, A.
Fehr, T.
Snoeij, P.
Saavedra, L.
Discipline
Earth and related Environmental sciences
Subject
Bromine compounds
Catalysis
Chlorine compounds
Ozone layer
Spectrometers
Catalytic cycles
Halogen activation
Reactive chlorine
Stellar occultation spectrometer GOMOS
Upper atmosphere
boundary layer
bromine
catalysis
chlorine
global climate
halogen
measurement method
ozone depletion
polar region
polar vortex
stratosphere
Audience
Scientific
Date
2006Metadata
Show full item recordDescription
The stratospheric ozone depletion observed in polar regions is caused by several catalytic cycles induced by reactive chlorine and bromine species. By reacting with BrO, ClO causes the formation of OClO which is considered as a proxy of the halogen activation. We present the first global determination of the stratospheric OClO distribution measured during the year 2003 by the stellar occultation spectrometer GOMOS. Besides its expected polar abundance, we discovered the presence of a worldwide OClO layer in the upper stratosphere. At lower altitudes, OClO seems also to be present beyond the limit of the polar vortices, an unreported feature.
Citation
Fussen, D.; Vanhellemont, F.; Dodion, J.; Bingen, C.; Mateshvili, N.; Daerden, F.; Fonteyn, D.; Errera, Q.; Chabrillat, S.; Kyrölä, E.; Tamminen, J.; Sofieva, V.; Hauchecome, A.; Dalaudier, F.; Bertaux, J.-L.; Renard, J.-B.; Fraisse, R.; D'Andon, O.F.; Barrot, G.; Guirlet, M.; Mangin, A.; Fehr, T.; Snoeij, P.; Saavedra, L. (2006). A global OClO stratospheric layer discovered in GOMOS stellar occultation measurements. , Geophysical Research Letters, Vol. 33, Issue 13, L13815, DOI: 10.1029/2006GL026406.Identifiers
scopus: 2-s2.0-33845651668
Type
Article
Peer-Review
Yes
Language
eng